diff --git a/.github/workflows/benchmark.yaml b/.github/workflows/benchmark.yaml
index 407f012..7cd0e3c 100644
--- a/.github/workflows/benchmark.yaml
+++ b/.github/workflows/benchmark.yaml
@@ -19,7 +19,7 @@ jobs:
     name: Benchmark / awslogs / ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
         with:
           go-version: '1.21'
@@ -58,7 +58,7 @@ jobs:
     name: Benchmark / fluentd / ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
         with:
           go-version: '1.21'
@@ -94,7 +94,7 @@ jobs:
       id-token: write
       contents: write
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
         with:
           go-version: '1.21'
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index d82290a..be8dfd9 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -14,7 +14,7 @@ jobs:
       fail-fast: false
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
         with:
           go-version: 'stable'
@@ -36,7 +36,7 @@ jobs:
     name: Unit Tests / ${{ matrix.os }} / Go ${{ matrix.go }}
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
         with:
           go-version: ${{ matrix.go }}
@@ -57,7 +57,7 @@ jobs:
       id-token: write
       contents: read
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
         with:
           go-version: ${{ matrix.go }}
@@ -90,7 +90,7 @@ jobs:
       id-token: write
       contents: write
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
         with:
           go-version: ${{ matrix.go }}
@@ -117,7 +117,7 @@ jobs:
       id-token: write
       contents: write
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
         with:
           go-version: ${{ matrix.go }}
@@ -159,7 +159,7 @@ jobs:
   go-mod-tidy-check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
         with:
           go-version-file: go.mod
@@ -169,7 +169,7 @@ jobs:
   mdlint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: avto-dev/markdown-lint@v1
         with:
           args: '**/*.md'